Functional room pressurization system suitable for closed pressurization building

Abstract

The utility model discloses a function room pressurization system suitable for a closed pressurization building and relates to the field of buildings. The function room pressurization system suitable for the closed pressurization building comprises a plurality of function rooms and a pressurization aisle connected with the function rooms, and an air supply system and / or an air exchange system are / is arranged in each function room. The air supply system comprises a booster fan and a fresh air pipe connected with the booster fan, and the fresh air pipe extends into the corresponding functional chamber and is connected with a fresh air opening. The air exchange system comprises an air exhaust fan and an air exhaust pipe connected with the air exhaust fan, and the air exhaust pipe extends into the corresponding functional chamber and is connected with an air exhaust port; a pressure difference sensor and / or a carbon dioxide sensor are / is arranged in the function chamber, and the booster fan and / or the exhaust fan are / is controlled to operate through monitoring data of the sensors to maintain the air pressure and the air environment of the function chamber. The function room pressurization system suitable for the closed pressurization building can control the ventilation degree according to data detected by a sensor, ensures that the pollutant concentration in a function room meets the requirement, saves the energy consumption of a fan and reduces the load of an indoor air conditioner.

Description

Technical Field

[0001] This application relates to the field of construction, and more specifically, to a functional room pressurization system suitable for sealed pressurized buildings. Background Technology

[0002] High-altitude areas have low air pressure, typically only 60% of that at sea level, making them unsuitable for long-term habitation. Pressurized buildings are special structures designed for high-altitude regions. They create a comfortable and habitable indoor environment by pressurizing a sealed building with air to achieve the same pressure levels as at sea level.

[0003] Utility model patent CN216204014U discloses a positive pressure chamber exhaust gas system for high-altitude areas. The system includes a self-circulating air handling unit for air purification in the restrooms of enclosed buildings in high-altitude areas, an environmental monitoring device for monitoring the air quality in these restrooms, and a controller electrically connected to the self-circulating air handling unit and the environmental monitoring device. Both the self-circulating air handling unit and the environmental monitoring device are installed inside the restrooms in the high-altitude enclosed buildings. Each restroom is equipped with an exhaust vent, an exhaust pipe, a ventilation fan, and a sealing valve. This positive pressure chamber exhaust gas system for high-altitude areas achieves air purification while maintaining normal pressure within the restroom.

[0004] However, the current pressurized air supply and exhaust system cannot meet the fresh air volume requirements of the activity room scenario with high oxygen consumption. If the fresh air volume of the activity room is to be met, the fan needs to be enlarged to increase the air supply volume, but this also increases the unnecessary fresh air volume of other rooms, which will inevitably waste more fan energy consumption. In addition, the diameter of the air supply duct needs to be increased, which will increase the cost. Utility Model Content

[0005] The purpose of this application is to provide a pressurization system for functional rooms in enclosed pressurized buildings, which can control the ventilation level based on sensor detection data, ensuring that the concentration of pollutants in the functional room meets the requirements while saving fan energy consumption and reducing the indoor air conditioning load.

[0006] This application is implemented as follows:

[0007] This application provides a pressurization system for functional rooms in a sealed pressurized building, comprising multiple functional rooms and pressurized corridors connecting the multiple functional rooms. Each functional room is equipped with an air supply system and / or a ventilation system. The air supply system includes a pressurizing fan and a fresh air duct connected to the pressurizing fan, the fresh air duct extending to the corresponding functional room and connected to a fresh air inlet. The ventilation system includes an exhaust fan and an exhaust duct connected to the exhaust fan, the exhaust duct extending to the corresponding functional room and connected to an exhaust outlet. Each functional room is equipped with a differential pressure sensor and / or a carbon dioxide sensor. Data monitored by the sensors is used to control the operation of the pressurizing fan and / or exhaust fan to maintain the air pressure and air environment of the functional room.

[0008] In some alternative implementations, the function room includes one or more of an activity room, an office, a living room, and a smoking room.

[0009] In some alternative implementations, when the functional room is an activity room, the activity room is provided with a door for connecting or isolating the pressurized corridor, and the door is provided with a one-way air inlet louver that allows air to flow into the activity room in one direction.

[0010] In some alternative implementations, when the functional room is an activity room, the fresh air inlet and the exhaust air outlet are arranged close to and far from the door, respectively.

[0011] In some alternative implementations, the fresh air duct is equipped with an electric air valve and a flow meter, and / or the exhaust duct is equipped with an electric regulating valve.

[0012] In some alternative implementations, the fresh air duct is provided with a first silencer, and / or the exhaust duct is provided with a second silencer.

[0013] In some alternative implementations, a heat recovery device is also included, through which fresh air ducts and / or exhaust ducts pass.

[0014] In some alternative implementations, when the functional room is a smoking room, the exhaust duct includes a first exhaust duct and a second exhaust duct connected to the middle of the first exhaust duct. The first exhaust duct and the second exhaust duct are respectively connected to the outside of the smoking room through a pipe airtight quick-connect fitting. The first exhaust duct is equipped with a pressurized electric valve, and the second exhaust duct is equipped with a non-pressurized electric valve. The second exhaust duct is connected to an exhaust fan.

[0015] In some alternative implementations, the smoking room is equipped with a smoke detector, and / or, the smoking room is equipped with a normally closed fire door.

[0016] In some alternative implementations, the pipe airtight quick coupling includes two mating quick coupling chucks, a quick coupling sealing ring fitted at the mating point of the two quick coupling chucks, and a quick coupling clamp fitted on the quick coupling sealing ring.

[0017] The beneficial effects of this application are: the functional room pressurization system for closed pressurized buildings provided by this application monitors the pressure and carbon dioxide data in the functional room by installing differential pressure sensors and / or carbon dioxide sensors in the functional room, and controls the operation of pressurization fans and / or exhaust fans according to the monitored data to maintain the air pressure and air environment in the functional room, ensuring that the pollutant concentration in the functional room meets the requirements while saving fan energy consumption and reducing the indoor air conditioning load. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A partial structural schematic diagram of a functional room pressurization system suitable for sealed pressurized buildings provided in this application embodiment;

[0020] Figure 2 A perspective structural schematic diagram of a heat recovery device in a function room pressurization system for a closed pressurized building, provided in an embodiment of this application.

[0021] Figure 3 A partial structural schematic diagram of a function room pressurization system for a sealed pressurized building, installed in a smoking room, as provided in an embodiment of this application;

[0022] Figure 4 An exploded structural diagram of a quick-connect pipe fitting in a function room pressurization system for a sealed pressurized building, provided as an embodiment of this application.

[0023] In the diagram: 100, Equipment room; 110, Pressurized fan; 120, Heat recovery device; 130, Fresh air duct; 140, Fresh air branch duct; 150, Electric air valve; 160, Exhaust duct; 170, Carbon dioxide sensor; 180, Electric regulating valve; 190, First silencer; 200, Activity room; 210, Room; 220, Second silencer; 230, Flow meter; 240, Differential pressure sensor; 250, First fresh air outlet; 260, Exhaust outlet; 270, Second fresh air outlet; 280 1. Door body; 290. One-way air inlet louver; 300. Smoking room; 310. Filtered exhaust outlet; 320. First exhaust pipe; 330. Second exhaust pipe; 340. Pipeline airtight quick connector; 350. Pressurized electric valve; 360. Non-pressurized electric valve; 370. Exhaust fan; 380. Third silencer; 390. Smoke detector; 400. Quick-connect chuck; 410. Quick-connect sealing ring; 420. Quick-connect clamp; 430. Normally closed fire door; 440. Touch screen; 500. Pressurized corridor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The features and performance of the functional room pressurization system applicable to sealed pressurized buildings of this application are further described in detail below with reference to embodiments.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, this application provides a functional room pressurization system suitable for a sealed pressurized building. It includes various functional rooms located within the pressurized building, pressurized corridors 500 connecting the functional rooms, an air supply system for delivering air to specific functional rooms, a ventilation system for exhausting air from specific functional rooms, and a heat recovery device 120. The functional rooms include an activity room 200, a room 210, and a smoking room 300. The air supply system includes a pressurizing fan 110 located in the equipment room 100. The pressurizing fan 110 is connected to a fresh air duct 130 passing through the heat recovery device 120. The fresh air duct 130 is connected to fresh air branch pipes 140 extending into the activity room 200 and each room 210, respectively. Each fresh air branch pipe 140 is equipped with an electric air valve 150. The ventilation system includes an exhaust pipe 160 with one end passing through the heat recovery device 120 and extending into the activity room 200. The exhaust pipe 160 and the fresh air duct 130... Pipes within the heat recovery device 120 are arranged in a crisscross pattern. A carbon dioxide sensor 170 and a differential pressure sensor 240 are installed in the activity room 200. An electric regulating valve 180 and a second silencer 220 are installed on the exhaust duct 160. A flow meter 230 is installed on the fresh air duct 130. The activity room 200 has a door 280 for connecting to or isolating the pressurized corridor 500. The door 280 has a one-way air inlet louver 290 that allows air to flow unidirectionally into the activity room 200. The exhaust duct 160 is connected to an exhaust port 260 located at the end of the activity room 200 furthest from the door 280. Each fresh air branch duct 140 is equipped with a first silencer 190. The end of the fresh air branch duct 140 extending into the activity room 200 is located near the door 280 and connected to a first fresh air outlet 250. The end of the fresh air branch duct 140 extending into the room 210 is located furthest from the inlet and connected to a second fresh air outlet 270. In this embodiment, room 210 can be used as an office, living room, or bathroom, and a carbon dioxide sensor 170 is installed in room 210.

[0033] The pressurization system for the functional room of a sealed pressurized building also includes a filter exhaust port 310 and a carbon dioxide sensor 170 located in the smoking room 300. The filter exhaust port 310 is connected to a first exhaust pipe 320 and a second exhaust pipe 330 connected to the middle of the first exhaust pipe 320. The first exhaust pipe 320 and the second exhaust pipe 330 are respectively connected to the outside through a pipe airtight quick connector 340. The pipe airtight quick connector 340 includes two quick-connect chucks 400 that are mated together, a quick-connect sealing ring 410 fitted at the mating point of the two quick-connect chucks 400, and a quick-connect clamp 420 fitted on the quick-connect sealing ring 410. One quick-connect chuck 400 of the pipe airtight quick connector 340 is connected to the corresponding first exhaust pipe 320 and second exhaust pipe 330, and the other quick-connect chuck 400 is connected to the inner wall of the smoking room 300. The first smoke exhaust pipe 320 is equipped with a pressurized electric valve 350 and a third silencer 380. The second smoke exhaust pipe 330 is equipped with a non-pressurized electric valve 360 ​​and an exhaust fan 370. The smoking room 300 is also equipped with a smoke detector 390 and a touch screen 440. The exit connecting the smoking room 300 and the pressurized corridor 500 is equipped with a normally closed fire door 430.

[0034] When the functional room pressurization system for sealed pressurized buildings provided in this application is working, the pressurization fan 110 is started to deliver fresh air through the fresh air duct 130 and heat recovery device 120 into each fresh air branch duct 140. At this time, the electric air valve 150 on the fresh air branch duct 140 can be opened to allow fresh air to be delivered to the activity room 200 and each room 210 through each fresh air branch duct 140 to reach a preset pressure. When a room 210 is unoccupied, the electric air valve 150 on the corresponding fresh air branch duct 140 can be closed to stop the air supply to that room 210, and the frequency of the pressurization fan 110 can be adjusted to reduce the amount of fresh air supplied, thereby saving energy. Except for the activity room 200, which requires a large amount of fresh air, the fresh air demand of other rooms 210 is relatively stable.

[0035] When people are active in the activity room 200, the carbon dioxide concentration inside the activity room 200 will rise sharply. At this time, the carbon dioxide sensor 170 installed in the activity room 200 will monitor the carbon dioxide data in real time, allowing the operators to control the electric regulating valve 180 and adjust its opening to regulate the exhaust volume. When the activity room 200 is ventilating, due to the negative pressure, fresh air will enter the activity room 200 from the external pressurized corridor 500 through the one-way air inlet louver 290 on the door 280, thereby diluting the carbon dioxide and other pollutants inside the activity room 200. The one-way air inlet louver 290 on the door 280 of the activity room 200 is self-closing, normally closed under gravity, and opens in the direction of airflow under the action of wind pressure when air is entering.

[0036] Since the airflow organization of the activity room 200 is achieved under the influence of a large pressure difference between the inside and outside, the arrangement of the first fresh air outlet 250 and exhaust vent 260 in the activity room 200 and the second fresh air outlet 270 in the room 210 meets the following requirements: the first fresh air outlet 250 of the activity room 200 is close to the inlet door 280, the exhaust vent 260 is close to the interior of the activity room 200 and away from the inlet door 280, and the second fresh air outlet 270 of the room 210 is close to the interior of the room 210 and away from the inlet. This ensures that indoor pollutants are removed to the maximum extent possible according to the airflow direction.

[0037] A differential pressure sensor 240 is installed inside the activity room 200 to constantly monitor the pressure difference between the inside and outside of the activity room 200, while a carbon dioxide sensor 170 monitors the carbon dioxide concentration inside the activity room 200. When the number of people in the activity room 200 increases or decreases, the indoor carbon dioxide concentration will change. At this time, the booster fan 110 can be controlled to adjust the air supply volume using a frequency converter to maintain the carbon dioxide concentration within the set value. Changes in the air supply volume will affect the pressure value inside the activity room 200. The pressure difference signal fed back by the differential pressure sensor 240 will then control the opening of the electric regulating valve 180 on the exhaust duct 160, maintaining the pressure value inside the activity room 200 within the set range. In this way, the activity room 200 can meet the fresh air volume requirements of the personnel while minimizing fan energy consumption.

[0038] In winter, the air temperature inside the activity room 200 is usually higher than that of the fresh air outside the activity room 200, while in summer, the air temperature inside the activity room 200 is usually lower than that of the fresh air outside the activity room 200. The air exhausted through the exhaust duct 160 of the activity room 200 contains a large amount of usable cooling or heating energy. By arranging the exhaust duct 160 and the fresh air duct 130 crosswise within the heat recovery device 120, the heat recovery device 120 can effectively facilitate heat exchange between the exhaust and fresh air flows in opposite directions. The exhaust air can then preheat and precool the fresh air, thereby reducing the air conditioning load inside the activity room 200. The fresh air branch duct 140 and the exhaust duct 160 are respectively equipped with a first silencer 190 and a second silencer 220, which can effectively reduce the noise generated by the flow of fresh air and exhaust gas, avoiding disturbance to workers.

[0039] The smoking room 300 in the sealed pressurized building has strict fire protection requirements, and no flammable materials can be placed inside the smoking room 300. The main structure of the smoking room 300 is made of fire-retardant materials and can be quickly disassembled and assembled for easy transportation and installation. An exhaust system is used to handle the exhaust and pressure control of the smoke within the smoking room 300. The exhaust system includes a first exhaust pipe 320 connected to a filter exhaust port 310 and a second exhaust pipe 330 connected to the middle of the first exhaust pipe 320. The first and second exhaust pipes 320 are connected to the outside via quick-connect pipe fittings 340, allowing for rapid... The quick-connect chuck 400 is pre-welded to the pressurized chamber of the smoking room 300 via a reserved interface. During installation, the pressurized chamber of the smoking room 300 is connected to the quick-connect chuck 400 of the first exhaust pipe 320 and the second exhaust pipe 330. A quick-connect sealing ring 410 is fitted at the connection point between the quick-connect chucks 400 and the quick-connect clamp 420 is fitted on the quick-connect sealing ring 410 and locked.

[0040] The smoking room 300 is equipped with a normally closed fireproof door 430 at its exit. The normally closed fireproof door 430 has an automatic door closer, which automatically closes when a person enters the smoking room 300 to prevent smoke from escaping. The smoking room 300 is also equipped with a smoke detector 390 for detecting smoke and a touchscreen 440 electrically connected to a pressurized electric valve 350 and a non-pressurized electric valve 360, respectively. The touchscreen 440 is used to control the connection or disconnection of the pressurized and non-pressurized electric valves 350 and 360, respectively.

[0041] Under pressurized conditions, when someone smokes in the smoking room 300, the smoke detector 390 senses the presence of smoke. At this time, the pressurized electric valve 350 is opened, and under the action of the internal and external pressure difference, the smoke is discharged outdoors through the first exhaust pipe 320, thus performing exhaust. The third silencer 380 on the first exhaust pipe 320 can reduce the exhaust noise under large pressure difference, while the filter exhaust port 310 can filter and purify pollutants in the smoke to prevent air pollution.

[0042] In non-pressurized conditions, when someone smokes in the smoking room 300, the smoke detector 390 senses the presence of smoke. At this time, the non-pressurized electric valve 360 ​​and the exhaust fan 370 can be started, so that the exhaust fan 370 continuously discharges the smoke through the first exhaust pipe 320 and the second exhaust pipe 330, ensuring the air quality of the smoking room 300.

[0043] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A pressurization system for functional rooms in a sealed pressurized building, comprising multiple functional rooms and pressurized corridors connecting the multiple functional rooms, wherein each functional room is equipped with an air supply system and / or an air exchange system; the air supply system includes a pressurizing fan and a fresh air duct connected to the pressurizing fan, the fresh air duct extending to a corresponding functional room and connected to a fresh air inlet; the air exchange system includes an exhaust fan and an exhaust duct connected to the exhaust fan, the exhaust duct extending to a corresponding functional room and connected to an exhaust outlet; characterized in that, The functional room is equipped with a differential pressure sensor and / or a carbon dioxide sensor. The sensor data is used to monitor and control the operation of the pressurization fan and / or exhaust fan to maintain the air pressure and air environment of the functional room.

2. The functional room pressurization system for sealed pressurized buildings according to claim 1, characterized in that, The functional rooms include one or more of the following: activity room, office, living room, and smoking room.

3. The functional room pressurization system for sealed pressurized buildings according to claim 2, characterized in that, When the functional room is an activity room, the activity room is provided with a door for connecting or isolating the pressurized corridor, and the door is provided with a one-way air inlet louver that allows air to flow into the activity room in one direction.

4. The functional room pressurization system for sealed pressurized buildings according to claim 3, characterized in that, When the functional room is an activity room, the fresh air inlet and the exhaust air outlet are respectively located close to and far from the door.

5. The functional room pressurization system for sealed pressurized buildings according to claim 1, characterized in that, The fresh air duct is equipped with an electric air valve and a flow meter, and / or the exhaust duct is equipped with an electric regulating valve.

6. The functional room pressurization system for sealed pressurized buildings according to claim 1, characterized in that, The fresh air duct is equipped with a first silencing device, and / or the exhaust duct is equipped with a second silencing device.

7. The functional room pressurization system for sealed pressurized buildings according to claim 1, characterized in that, It also includes a heat recovery device through which the fresh air duct and / or the exhaust duct passes.

8. The functional room pressurization system for sealed pressurized buildings according to claim 2, characterized in that, When the functional room is a smoking room, the exhaust pipe includes a first exhaust pipe and a second exhaust pipe connected to the middle of the first exhaust pipe. The first exhaust pipe and the second exhaust pipe are respectively connected to the outside of the smoking room through a pipe airtight quick connector. The first exhaust pipe is equipped with a pressurized electric valve, and the second exhaust pipe is equipped with a non-pressurized electric valve. The second exhaust pipe is connected to the exhaust fan.

9. The functional room pressurization system for sealed pressurized buildings according to claim 8, characterized in that, The smoking room is equipped with a smoke detector, and / or the smoking room is equipped with a normally closed fire door.

10. The functional room pressurization system for sealed pressurized buildings according to claim 8, characterized in that, The pipe airtight quick connector includes two interlocking quick-connect chucks, a quick-connect sealing ring fitted at the joint of the two quick-connect chucks, and a quick-connect clamp fitted on the quick-connect sealing ring.

Images